ASA decking is a type of outdoor decking material made from Acrylonitrile Styrene Acrylate (ASA), a durable and weather-resistant thermoplastic. ASA decking is known for its exceptional resistance to UV rays, ensuring that the color remains vibrant and doesn’t fade over time, even under intense sunlight and extreme weather conditions. 

Acrylonitrile Styrene Acrylate (ASA) is a high-performance thermoplastic material. This combination of materials and plastics provides ASA with superior hardness, gloss, toughness and resistance properties, greater than that of pure polystyrene.